Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 26499
TLS Online TPP Program

#Question id: 10324

Which of the following is not true of all horizontally oriented phylogenetic trees, where time advances to the right?

#Unit 9. Diversity of Life Forms
  1. Each branch point represents a point in absolute time.
  2. Organisms represented at the base of such trees are ancestral to those represented at higher levels.
  3. The more branch points that occur between two taxa, the more divergent their DNA sequences should be.
  4. The common ancestor represented by the rightmost branch point existed more recently in time than the common ancestors represented at branch points located to the left.
More Questions
TLS Online TPP Program

#Question id: 5314

#Unit 11. Evolution and Behavior

Which of the following statements correctly describes one characteristic of a multigene family?
TLS Online TPP Program

#Question id: 7765

#Unit 5. Developmental Biology

The enzyme complex or gene that maintains telomere integrity is________, which acts as an antisenescence complex. Mice and humans with its deficiencies age prematurely (Mitchell et al. 1999). Overexpressing or reactivating it in senescent cells extends longevity in mice without increasing cancer,
TLS Online TPP Program

#Question id: 8934

#Unit 9. Diversity of Life Forms

At which developmental stage should one be able to first distinguish a protostome embryo from a deuterostome embryo?
TLS Online TPP Program

#Question id: 12326

#Unit 10. Ecological Principles

Please refer to the following art to answer the following question.

According to the Shannon Diversity Index, which block would show the greatest diversity?
TLS Online TPP Program

#Question id: 4716

#Unit 11. Evolution and Behavior

Which of the following is correct match?

A

Wallace

I

Changes in allele frequency due

to random genetic drift

B

Sewall Wright

II

Evolution by natural selection

C

Carl Woese

III

hybrid sterility

D

Haldane’s rule

IV

DNA sequencing led to molecular phylogenetics